I'm not projecting, I'm saying that industrialists at the time had sufficient information and intelligence to understand that they were exploiting children, and workers in general.
Not everyone did, or wanted to, of course, some people are just plain arseholes who cannot see the world from the perspective of others. It goes beyond social conditioning and the beliefs of their times to the point of Sociopathy.
Or too far up their own arses to see that they are causing needless misery and suffering while it is within their ability to change their business practices. That of course would not be in their own interest.
That the misery exploitation was indeed understood by at least some of the people of that period is reflected in the efforts of those who actually fought and struggled for better pay and conditions...so the rationale that 'this was the attitude of the time' is nonsense.
I think there's two things going on. Firstly I think they thought it was the natural order of things, the strong exploit the weak. If God didn't want them to be exploited God would intervene.
Secondly the industrialists could think of the rural farm poor and their horrendous living conditions. At least their workers worked in heated houses, had access to modern wonders of the world, like a clock. They often brought in doctors for regular check-ups, something farmers didn't have. Their workers lived in modern houses with all the latest technological thingamagigs. And so on. I think that the industrialists could imagine that they were very benevolent.
Don't forget that on farms children always worked. The society at that time just saw it as normal.
There's also the issue of social Darwinism. Early socialism (especially in Britain) came to be closely associated with the Eugenics movement. They saw the rich as genetically superior. They had risen to their position because of their awesomeness. That's the kind of socialism that the Fabian society was into. In this world view the rich shouldn't exploit their workers because that would be like picking on the handicapped kid at school. The genetically superior have a duty to protect those who weren't lucky enough to be born superior. So even socialist industiralists of that time, who really did care about their workers, in no way were into equality. They could work their workers damn hard too.
Good people can do evil things. It's just a matter of perspective.